Vehicle Register Fixing Structure Multi-Directional Stiffness
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Solution Overview
Problem
Existing register fixing structures for vehicles, particularly those using clips on instrument panels, are prone to movement in multiple directions, compromising stiffness and stability during operation.
Innovation Solution
A register fixing structure that employs one-sided clips engaging in the vehicle front and rear direction and a side panel engaging piece in the vehicle width direction, providing improved stiffness while minimizing the fixing space in the upper and lower directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If clips are provided at upper and lower faces of the register to engage in vehicle front and rear direction, then the register can be fixed to the instrument panel, but the register is prone to move up, down, left and right particularly in the left and right direction, reducing fixing stiffness
Solution Approach 1:
The patent adds a second engagement direction (vehicle width direction) perpendicular to the original engagement direction (vehicle front and rear direction). By providing second engaging portions at side portions of the register and corresponding second engaged portions on the instrument panel, the fixing structure transforms from single-direction engagement to multi-directional engagement, preventing movement in all directions and significantly improving fixing stiffness
2Area of stationary object
If one-sided clips are used to minimize fixing space in upper and lower directions, then the space requirement is reduced, but the stiffness after fixing may be compromised compared to two-sided clips
Solution Approach 1:
The patent compensates for the reduced fixing strength from using one-sided clips by adding engagement in another dimension (vehicle width direction). The second engaging portions at the side portions provide additional constraint that makes up for the weaker one-sided clip configuration, achieving both space reduction and sufficient fixing strength
Solution Approach 2:
The patent combines two engagement systems: first engaging portions with one-sided clips for vertical engagement, and second engaging portions for horizontal engagement. By merging these two engagement systems that operate in perpendicular directions, the overall fixing strength is enhanced while maintaining the space-saving advantage of one-sided clips
Data Source
AI summary
A register fixing structure for a vehicle includes a first engaging portion provided at one of an upper portion and a lower portion of the register, or the instrument panel main body; a first engaged portion provided at the other of the upper portion and lower portion of the register or the instrument panel main body, and engaging with the first engaged portion in a vehicle front and rear direction; a second engaging portion provided at one of a side portion at a vehicle width direction outer side of the register or a side panel that is attached at the vehicle width direction outer side of the instrument panel main body; and a second engaged portion provided at the other of the side portion or the side panel, and engaging with the second engaged portion in a vehicle width direction.